ive been reading up on it for several hours and testing out some higher clocks/ different timings for memory.

one thing im stuck on is:

Write to Precharge Delay / Write Recovery Time or tWR: This sets the number of clock cycles between the completion of a valid write operation and before an active bank can be precharged. Write to precharge formula is tCL -1 +(Burst Legnth / 2)+tWTR

either im going mad or deprived of nutrients (forgot about food) but that formula to me

Saw this and I have tried a little memory over clocking with a I5 2500k, long time ago, on some one elses pc of course. It doesnt seem to like any number altering, I don't even know if its all-right to go overclocking with stepping, might want to check with a fx processor. I dont know if it does effect stepping of the processor, if find out please share. I've gone in, done the lower 4 numbers x-x-x-xx
things seemed to get quarky and un-stable. But when the 2nd digit is left alone it kind of works, the tcrd. The last Tras can be the worst, it works great for a while, then gaming it seems to mess with gpu, frequent crashes.
I did find this with your post and it looks like your off a bit 10-4-8 22 are very strange numbers for bringing latencys down
quote from fourm
When overclocking your timings, you must keep the tRAS = CL + tRCD+tRP (+/-1)

wow 25k rippin, if your down to 10-4-8-22 at 25k I hope your using liquid cooling or put a fan directly above memory. What is your voltage, Im sure you know if you look at timing like with lower speed memory it allways seems to follow a pattren. Like 8-8-8-24, look at factory timings of slower memory like 1800 or 2000 then add numbers on your way up 1 digit at a time. Getting memory stable at 2500 is probably pretty crazy.
Did you hear anything about intel, cpu isn't effected by latencys, or subtimings, i guess if its alright maybe try and get them lower it does make a diffrence.